Okay, so I know that the front-drive Eldorados have different exhaust manifolds from the rear-drive Fleetwoods and DeVilles. But, my question is will the manifolds from the '68-'70 472/500's interchange with the manifolds from a '67 429? The reason I ask is my '67 is in desperate need of a set of manifolds and I have found a gentleman locally that is parting out a '69 in horrible shape. Will they fit? Please please please let me know!